41 citations · 209 across the 15 of their papers we have counts for
15 papers
Supernova constraints on higher-dimensional cosmology with a phantom field
James Overduin, Nathan Prins, Joohan Lee
We use observational data on the magnitude-redshift relation for Type Ia supernovae together with constraints on the ages of the oldest stars to rule out a higher-dimensional exten…
Cosmological Coincidence without Fine Tuning
Joohan Lee, Tae-Hoon Lee, Phillial Oh +1
We present a simple cosmological model in which a single, non-minimally coupled scalar field with a quartic potential is responsible for both inflation at early times and accelerat…
Dark spinor model with torsion and cosmology
Seyen Kouwn, Joohan Lee, Tae Hoon Lee +1
We study cosmological consequences of the dark spinor model when torsion is included. Only some components of the torsion are allowed to be non-vanishing in homogeneous and isotrop…
Conformally-coupled dark spinor and FRW universe
Joohan Lee, Tae Hoon Lee, Phillial Oh
We study conformal coupling of dark spinor fields to gravity and calculate the energy density and the pressure of the spinor in FRW spacetime. We consider the renormalizable potent…
Asymptotically Static Universe
Seyen Kouwn, Joohan Lee, Tae Hoon Lee +2
We consider a cosmology in which the final stage of the Universe is neither accelerating nor decelerating, but approaches an asymptotic state where the scale factor becomes a const…
Coupling of Brans-Dicke scalar field with Horava-Lifshitz gravity
Joohan Lee, Tae Hoon Lee, Phillial Oh
We look for a Brans-Dicke type of generalization of the Horava-Lifshitz gravity. It is shown that such a generalization is possible within the detailed balance condition. Classical…